Thin film solar cell and method of manufacturing the same

A method of manufacturing a thin film solar cell comprising:

• forming a first electrode layer on a substrate;
• separating, with first separation grooves having a bent shape parallel to one another, the first electrode layer for each of unit cells;
• forming a photoelectric conversion layer including a semiconductor layer on the substrate on which the first electrode layer is formed;
• separating, with second separation grooves having a shape same as the first separation grooves, the photoelectric conversion layer for each of the unit cells in positions different from the first separation grooves;
• embedding a conductive material in the second separation grooves;
• forming a second electrode layer on the photoelectric conversion layer including the conductive material embedded in the second separation grooves;
• and
• separating, with third separation grooves having a shape same as the first separation grooves, the second electrode layer and the photoelectric conversion layer for each of the unit cells in positions different from the first and second separation grooves.